9812143 has 8 divisors (see below), whose sum is σ = 10932480. Its totient is φ = 8729880.

The previous prime is 9812123. The next prime is 9812167. The reversal of 9812143 is 3412189.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9812143 - 2⁹ = 9811631 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9812123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8973 + ... + 10006.

It is an arithmetic number, because the mean of its divisors is an integer number (1366560).

Almost surely, 2^9812143 is an apocalyptic number.

9812143 is a deficient number, since it is larger than the sum of its proper divisors (1120337).

9812143 is a wasteful number, since it uses less digits than its factorization.

9812143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19037.

The product of its digits is 1728, while the sum is 28.

The square root of 9812143 is about 3132.4340376136. The cubic root of 9812143 is about 214.0858464209.

The spelling of 9812143 in words is "nine million, eight hundred twelve thousand, one hundred forty-three".